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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">abs_image</span><span data-if="c" style="display:none;">abs_image</span><span data-if="cpp" style="display:none;">AbsImage</span><span data-if="dotnet" style="display:none;">AbsImage</span><span data-if="python" style="display:none;">abs_image</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">abs_image</span><span data-if="c" style="display:none;">abs_image</span><span data-if="cpp" style="display:none;">AbsImage</span><span data-if="dotnet" style="display:none;">AbsImage</span><span data-if="python" style="display:none;">abs_image</span></code> — 计算图像的绝对值(模数)。</p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>abs_image</b>(<a href="#Image"><i>Image</i></a> : <a href="#ImageAbs"><i>ImageAbs</i></a> :  : )</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>abs_image</b>(const Hobject <a href="#Image"><i>Image</i></a>, Hobject* <a href="#ImageAbs"><i>ImageAbs</i></a>)</code></p>
<p>
<code>Herror <b>T_abs_image</b>(const Hobject <a href="#Image"><i>Image</i></a>, Hobject* <a href="#ImageAbs"><i>ImageAbs</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>AbsImage</b>(const HObject&amp; <a href="#Image"><i>Image</i></a>, HObject* <a href="#ImageAbs"><i>ImageAbs</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>AbsImage</b>() const</code></p>
</div>
<div data-if="com" style="display:none;"></div>
<div data-if="dotnet" style="display:none;">
<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>AbsImage</b>(<a href="HObject.html">HObject</a> <a href="#Image"><i>image</i></a>, out <a href="HObject.html">HObject</a> <a href="#ImageAbs"><i>imageAbs</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>.<b>AbsImage</b>()</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>abs_image</b>(<a href="#Image"><i>image</i></a>: HObject) -&gt; HObject</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p>该算子 <code><span data-if="hdevelop" style="display:inline">abs_image</span><span data-if="c" style="display:none">abs_image</span><span data-if="cpp" style="display:none">AbsImage</span><span data-if="com" style="display:none">AbsImage</span><span data-if="dotnet" style="display:none">AbsImage</span><span data-if="python" style="display:none">abs_image</span></code> calculates the absolute gray values
of images of any type and stores the result in <a href="#ImageAbs"><i><code><span data-if="hdevelop" style="display:inline">ImageAbs</span><span data-if="c" style="display:none">ImageAbs</span><span data-if="cpp" style="display:none">ImageAbs</span><span data-if="com" style="display:none">ImageAbs</span><span data-if="dotnet" style="display:none">imageAbs</span><span data-if="python" style="display:none">image_abs</span></code></i></a>.
The power spectrum of complex images is calculated as a <code>real</code> image.
For a <a href="#Image"><i><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></i></a> of type 'int1', <a href="#ImageAbs"><i><code><span data-if="hdevelop" style="display:inline">ImageAbs</span><span data-if="c" style="display:none">ImageAbs</span><span data-if="cpp" style="display:none">ImageAbs</span><span data-if="com" style="display:none">ImageAbs</span><span data-if="dotnet" style="display:none">imageAbs</span><span data-if="python" style="display:none">image_abs</span></code></i></a> is of type
<code>byte</code>. For <a href="#Image"><i><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></i></a> of other signed types the type of the input
image is used for <a href="#ImageAbs"><i><code><span data-if="hdevelop" style="display:inline">ImageAbs</span><span data-if="c" style="display:none">ImageAbs</span><span data-if="cpp" style="display:none">ImageAbs</span><span data-if="com" style="display:none">ImageAbs</span><span data-if="dotnet" style="display:none">imageAbs</span><span data-if="python" style="display:none">image_abs</span></code></i></a>. The behavior in case of overflows or
underflows is undefined. 该算子 <code><span data-if="hdevelop" style="display:inline">abs_image</span><span data-if="c" style="display:none">abs_image</span><span data-if="cpp" style="display:none">AbsImage</span><span data-if="com" style="display:none">AbsImage</span><span data-if="dotnet" style="display:none">AbsImage</span><span data-if="python" style="display:none">abs_image</span></code> generates a logical
copy of unsigned images.
</p>
<p><code><span data-if="hdevelop" style="display:inline">abs_image</span><span data-if="c" style="display:none">abs_image</span><span data-if="cpp" style="display:none">AbsImage</span><span data-if="com" style="display:none">AbsImage</span><span data-if="dotnet" style="display:none">AbsImage</span><span data-if="python" style="display:none">abs_image</span></code> can be executed on an OpenCL device for <code>int1</code>,
<code>int2</code>, <code>int4</code>, <code>real</code>, and <code>complex</code> images.
However, since for OpenCL 1.0 only single precision floating point is
supported for all devices, and not all rounding modes are supported,
the OpenCL implementation can produce slightly different results from the
scalar or SIMD implementations.
</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
    
      <li>支持OpenCL计算设备。</li>
    
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  
    <li>在元组级别自动并行化。</li>
    <li>在图像通道级别自动并行化。</li>
    <li>Automatically parallelized on  domain level.</li>
  
</ul>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="Image" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></b> (input_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject</span> (int1* / int2* / int4* / int8 / real* / complex*)<i> *allowed for compute devices</i></span>
</div>
<p class="pardesc">Image(s) for which the absolute gray values are
to be calculated.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="ImageAbs" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ImageAbs</span><span data-if="c" style="display:none">ImageAbs</span><span data-if="cpp" style="display:none">ImageAbs</span><span data-if="com" style="display:none">ImageAbs</span><span data-if="dotnet" style="display:none">imageAbs</span><span data-if="python" style="display:none">image_abs</span></code></b> (output_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject *</span> (byte / int2 / int4 / int8 / real)</span>
</div>
<p class="pardesc">Result image(s).</p>
</div>
<h2 id="sec_example_all">例程 (HDevelop)</h2>
<pre class="example">
convert_image_type (Image, ImageInt2, 'int2')
texture_laws (ImageInt2, ImageTexture, 'el', 2, 5)
abs_image (ImageTexture, ImageTexture)
</pre>
<h2 id="sec_result">结果</h2>
<p>该算子 <code><span data-if="hdevelop" style="display:inline">abs_image</span><span data-if="c" style="display:none">abs_image</span><span data-if="cpp" style="display:none">AbsImage</span><span data-if="com" style="display:none">AbsImage</span><span data-if="dotnet" style="display:none">AbsImage</span><span data-if="python" style="display:none">abs_image</span></code> 返回值 <TT>2</TT> (
      <TT>H_MSG_TRUE</TT>)
    .  The
behavior in case of empty input (no input images available) is set
via 该算子
<a href="set_system.html"><code><span data-if="hdevelop" style="display:inline">set_system(::'no_object_result',&lt;Result&gt;:)</span><span data-if="c" style="display:none">set_system("no_object_result",&lt;Result&gt;)</span><span data-if="cpp" style="display:none">SetSystem("no_object_result",&lt;Result&gt;)</span><span data-if="com" style="display:none">SetSystem("no_object_result",&lt;Result&gt;)</span><span data-if="dotnet" style="display:none">SetSystem("no_object_result",&lt;Result&gt;)</span><span data-if="python" style="display:none">set_system("no_object_result",&lt;Result&gt;)</span></code></a></p>
<h2 id="sec_see">参考其它</h2>
<p>
<code><a href="convert_image_type.html"><span data-if="hdevelop" style="display:inline">convert_image_type</span><span data-if="c" style="display:none">convert_image_type</span><span data-if="cpp" style="display:none">ConvertImageType</span><span data-if="com" style="display:none">ConvertImageType</span><span data-if="dotnet" style="display:none">ConvertImageType</span><span data-if="python" style="display:none">convert_image_type</span></a></code>, 
<code><a href="power_byte.html"><span data-if="hdevelop" style="display:inline">power_byte</span><span data-if="c" style="display:none">power_byte</span><span data-if="cpp" style="display:none">PowerByte</span><span data-if="com" style="display:none">PowerByte</span><span data-if="dotnet" style="display:none">PowerByte</span><span data-if="python" style="display:none">power_byte</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
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Foundation</p>
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